Androscoggin River at Errol, NH
USGS Site No: 01053500 • Androscoggin River • Coos County, NH
Androscoggin River at Errol, NH on the Androscoggin River is currently at 2,080 cfs (High — 79th percentile for this date) . Gage height: 2.71 ft.
Reading from
Historical Percentile Comparison
Today's discharge compared to the long-term record for October 28 at this station. Percentile rank shows what fraction of historical years had lower flow on this date.
| Percentile | Label | CFS Threshold | Today's Flow |
|---|---|---|---|
| 10th | Very Low threshold | 941 | |
| 25th | Low threshold | 1,250 | |
| 50th (Median) | Normal (median) | 1,520 | |
| 75th | High threshold | 1,800 | |
| 95th | Very High threshold | 3,110 | Today: 2,080 cfs |
30-Day Hydrograph
Recent discharge plotted against the historical 10th–95th percentile envelope for the same calendar days. Source: USGS daily values + long-term statistics.
30-Day Flow History
| Date | Discharge (CFS) | Gage Ht (ft) |
|---|---|---|
| May 28, 2026 | 2,020 | — |
| May 27, 2026 | 1,780 | — |
| May 26, 2026 | 1,800 | — |
| May 24, 2026 | 1,490 | — |
| May 23, 2026 | 1,490 | — |
| May 22, 2026 | 1,560 | — |
| May 21, 2026 | 1,900 | — |
| May 20, 2026 | 2,410 | — |
| May 19, 2026 | 2,950 | — |
| May 18, 2026 | 3,360 | — |
| May 17, 2026 | 3,050 | — |
| May 16, 2026 | 2,450 | — |
| May 15, 2026 | 1,790 | — |
| Apr 21, 2026 | 2,430 | — |
| Apr 20, 2026 | 3,520 | — |
| Apr 19, 2026 | 4,740 | — |
| Apr 18, 2026 | 4,780 | — |
| Apr 17, 2026 | 4,730 | — |
| Apr 16, 2026 | 4,660 | — |
| Apr 15, 2026 | 4,170 | — |
| Apr 14, 2026 | 2,440 | — |
| Apr 13, 2026 | 2,220 | — |
| Apr 12, 2026 | 2,090 | — |
| Apr 11, 2026 | 2,090 | — |
| Apr 10, 2026 | 2,090 | — |
| Apr 9, 2026 | 1,600 | — |
| Apr 8, 2026 | 1,050 | — |
| Apr 7, 2026 | 1,210 | — |
| Apr 6, 2026 | 1,200 | — |
| Apr 5, 2026 | 1,340 | — |
Station Information
- USGS Site No
- 01053500
- State
- NH
- County
- Coos County
- Coordinates
- 44.7825, -71.1286
- Drainage Area
- 1,046 mi²
- Datum (ft)
- 1,226.6
- HUC Code
- 01040001
Recent Extremes
- Max discharge
-
6,810 cfsMay 20, 2025
- Min discharge
-
974 cfsSep 10, 2025
Computed from the local daily-values archive.
Nearby Gauges
-
Diamond River Near Wentworth Location, NHNormal7.4 mi · 225 cfs
-
Androscoggin River Below Bog Brook at Cambridge NHNormal8.4 mi · 2,220 cfs
-
Upper Ammonoosuc River Near Groveton, NHNormal19.9 mi · 292 cfs
-
Ellis River at South Andover, MaineNormal23.4 mi · 158 cfs
-
Connecticut River Below Indian Stream near Pittsburg, NHNormal23.6 mi · 488 cfs